∫ Утверждение Mathlib
support_neg
Mathlib.Algebra.FreeAbelianGroup.Finsupp
URI: https://scilib.ai/kg/mathlib#FreeAbelianGroup.support_neg
∫ Утверждение Mathlib
Mathlib.Algebra.FreeAbelianGroup.Finsupp
URI: https://scilib.ai/kg/mathlib#FreeAbelianGroup.support_neg